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the Danish surname Jessen is probably the origin, although there's also at least one town named Jessen in Germany. There is a botanist Karl Friedrich Wilhelm Jessen (1821-1889) who describes a number of species in Deutschlands Graser und Getreidearten 1863. Gustav Karl Wilhelm Hermann Karsten (4 years older than Jessen) describes the palm as Jessenia in 1857 in the journal Linnaea; Ein Journal für die Botanik in ihrem ganzen Umfange. Jessen published 45 names to Karstens 701

This message was edited 2/18/2020, 2:04 PM